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Finding the Fourth Proportional to 543,604.80, 815,407.20 and 535,731.60

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Solution

The fourth proportional to 543,604.80, 815,407.20 and 535,731.60 is: 803,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,604.80 : 815,407.20 = 535,731.60 : x
  2. Step 2: Convert to fraction form
    543,604.80/815,407.20 = 535,731.60/x
  3. Step 3: Cross multiply
    543,604.80x = 815,407.20 × 535,731.60
  4. Step 4: Simplify right side
    543,604.80x = 436,839,403,907.52
  5. Step 5: Solve for x
    x = 436,839,403,907.52/543,604.80
  6. Step 6: Final answer
    x = 803,597.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.